1 /******************************************************************************
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4 * This software is supplied by Renesas Technology Corp. and is only
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5 * intended for use with Renesas products. No other uses are authorized.
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7 * This software is owned by Renesas Technology Corp. and is protected under
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8 * all applicable laws, including copyright laws.
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10 * THIS SOFTWARE IS PROVIDED "AS IS" AND RENESAS MAKES NO WARRANTIES
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11 * REGARDING THIS SOFTWARE, WHETHER EXPRESS, IMPLIED OR STATUTORY,
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12 * INCLUDING BUT NOT LIMITED TO WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
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13 * PARTICULAR PURPOSE AND NON-INFRINGEMENT. ALL SUCH WARRANTIES ARE EXPRESSLY
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16 * TO THE MAXIMUM EXTENT PERMITTED NOT PROHIBITED BY LAW, NEITHER RENESAS
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17 * TECHNOLOGY CORP. NOR ANY OF ITS AFFILIATED COMPANIES SHALL BE LIABLE
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18 * FOR ANY DIRECT, INDIRECT, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES
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19 * FOR ANY REASON RELATED TO THE THIS SOFTWARE, EVEN IF RENESAS OR ITS
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20 * AFFILIATES HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
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22 * Renesas reserves the right, without notice, to make changes to this
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23 * software and to discontinue the availability of this software.
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24 * By using this software, you agree to the additional terms and
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25 * conditions found by accessing the following link:
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26 * http://www.renesas.com/disclaimer
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27 ******************************************************************************
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28 * Copyright (C) 2008. Renesas Technology Corp., All Rights Reserved.
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29 *******************************************************************************
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30 * File Name : hwsetup.c
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32 * Description : Power up hardware initializations
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33 ******************************************************************************
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34 * History : DD.MM.YYYY Version Description
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35 * : 15.02.2010 1.00 First Release
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36 ******************************************************************************/
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39 /******************************************************************************
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40 Includes <System Includes> , "Project Includes"
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41 ******************************************************************************/
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43 #include "iodefine.h"
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44 #include "rskrx210def.h"
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45 #include "hd44780.h" /* EZ-LCD include file */
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47 /******************************************************************************
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49 ******************************************************************************/
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51 /******************************************************************************
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53 ******************************************************************************/
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55 /******************************************************************************
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56 Imported global variables and functions (from other files)
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57 ******************************************************************************/
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59 /******************************************************************************
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60 Exported global variables and functions (to be accessed by other files)
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61 ******************************************************************************/
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63 /******************************************************************************
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64 Private global variables and functions
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65 ******************************************************************************/
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66 void io_set_cpg(void);
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67 void ConfigurePortPins(void);
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68 void EnablePeripheralModules(void);
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70 /******************************************************************************
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71 * Function Name: HardwareSetup
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72 * Description : This function does initial setting for CPG port pins used in
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73 * : the Demo including the MII pins of the Ethernet PHY connection.
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75 * Return Value : none
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76 ******************************************************************************/
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77 void HardwareSetup(void)
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82 /* Setup the port pins */
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83 ConfigurePortPins();
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85 /* Enables peripherals */
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86 EnablePeripheralModules();
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88 #if INCLUDE_LCD == 1
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89 /* Initialize display */
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90 InitialiseDisplay();
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94 /******************************************************************************
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95 * Function Name: EnablePeripheralModules
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96 * Description : Enables Peripheral Modules before use
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98 * Return Value : none
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99 ******************************************************************************/
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100 void EnablePeripheralModules(void)
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102 /* Module standby clear */
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103 SYSTEM.MSTPCRA.BIT.MSTPA15 = 0; /* CMT0 */
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106 /******************************************************************************
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107 * Function Name: ConfigurePortPins
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108 * Description : Configures port pins.
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110 * Return Value : none
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111 ******************************************************************************/
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112 void ConfigurePortPins(void)
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114 /* Port pins default to inputs. To ensure safe initialisation set the pin states
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115 before changing the data direction registers. This will avoid any unintentional
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116 state changes on the external ports.
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117 Many peripheral modules will override the setting of the port registers. Ensure
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118 that the state is safe for external devices if the internal peripheral module is
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119 disabled or powered down. */
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120 /* Configure LED 0-4 pin settings */
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121 PORT1.PODR.BIT.B4 = 1;
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122 PORT1.PODR.BIT.B5 = 1;
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123 PORT1.PODR.BIT.B6 = 1;
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124 PORT1.PODR.BIT.B7 = 1;
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126 PORT1.PDR.BIT.B4 = 1;
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127 PORT1.PDR.BIT.B5 = 1;
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128 PORT1.PDR.BIT.B6 = 1;
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129 PORT1.PDR.BIT.B7 = 1;
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134 #if INCLUDE_LCD == 1
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135 /* Set LCD pins as outputs */
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137 PORTJ.PDR.BIT.B1 = 1;
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139 PORTJ.PDR.BIT.B3 = 1;
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141 PORTH.PDR.BYTE = 0x0F;
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145 /******************************************************************************
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146 * Function Name: io_set_cpg
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147 * Description : Sets up operating speed
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149 * Return Value : none
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150 ******************************************************************************/
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151 void io_set_cpg(void)
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153 /* Set CPU PLL operating frequencies. Changes to the peripheral clock will require
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154 changes to the debugger and flash kernel BRR settings. */
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156 /* ==== CPG setting ==== */
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160 SYSTEM.PRCR.WORD = 0xA503; /* Protect off */
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162 #if (CLK_SRC_HOCO == 1)
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163 SYSTEM.HOCOPCR.BYTE = 0x00; /* HOCO power supply on */
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164 SYSTEM.HOCOCR2.BYTE = 0x03; /* Select - 50MHz */
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165 SYSTEM.HOCOCR.BYTE = 0x01; /* HOCO is operating */
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167 for(i=0; i<10; i++){ /* wait over 60us */
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170 SYSTEM.MOSCWTCR.BYTE = 0x0C; /* Main Clock Oscillator Wait Control Register */
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172 /* wait over 2 ms @20MHz */
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174 SYSTEM.PLLWTCR.BYTE = 0x0B; /* PLL Wait Control Register */
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175 /* 262144 states */
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176 /* wait over 2.1 ms @PLL = 80Hz */
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179 SYSTEM.PLLCR.WORD = 0x0701; /* x8 @PLL */
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180 /* Input to PLL (EXTAL in) / 2 */
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185 PLL * 8 = 80Mhz */
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187 SYSTEM.MOSCCR.BYTE = 0x02; /* EXTAL ON */
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188 /* External oscillation input selection */
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189 SYSTEM.PLLCR2.BYTE = 0x00; /* PLL ON */
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191 for(i = 0; i<263; i++){ /* wait over 2.1ms */
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195 // SYSTEM.SCKCR.LONG = 0x21823333; /* ICK=PLL/2,FCK,PCK,BCL=PLL/4 */
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196 /************************************************************************/
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197 /* If setting bits individually, rather than a single long write, */
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198 /* set the BCK value before that of ICK */
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199 /************************************************************************/
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200 SYSTEM.SCKCR.BIT.PCKD = 3; /* PLL/8 = 10MHz */
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201 SYSTEM.SCKCR.BIT.PCKC = 3; /* PLL/8 = 10MHz */
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202 SYSTEM.SCKCR.BIT.PCKB = 3; /* PLL/8 = 10MHz */
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203 SYSTEM.SCKCR.BIT.PCKA = 3; /* PLL/8 = 10MHz */
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204 SYSTEM.SCKCR.BIT.BCK = 3; /* PLL/8 = 10MHz */
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205 SYSTEM.SCKCR.BIT.PSTOP1 = 1; /* BUS CLK OUT Disabled */
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206 SYSTEM.SCKCR.BIT.ICK = 1; /* PLL/2 = 40MHz */
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207 SYSTEM.SCKCR.BIT.FCK = 2; /* PLL/4 = 20MHz */
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209 while(SYSTEM.OPCCR.BIT.OPCMTSF == 1);
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210 SYSTEM.OPCCR.BIT.OLPCM = 0;
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211 while(SYSTEM.OPCCR.BIT.OPCMTSF == 1);
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212 #if (CLK_SRC_HOCO == 1)
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213 SYSTEM.SCKCR3.WORD = 0x0100; /* LOCO -> HOCO */
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215 SYSTEM.SCKCR3.WORD = 0x0400; /* LOCO -> PLL */
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